/Engine/Source/Runtime/Engine/Classes/GameFramework/GameMode.h
Broadcast a localized message to all players. Most message deal with 0 to 2 related PlayerStates. The LocalMessage class defines how the PlayerState's and optional actor are used.
virtual void BroadcastLocalized ( [AActor](API\Runtime\Engine\GameFramework\AActor) * Sender, [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [ULocalMessage](API\Runtime\Engine\GameFramework\ULocalMessage) > Message, int32 Switch, [APlayerState](API\Runtime\Engine\GameFramework\APlayerState) * RelatedPlayerState_1, [APlayerState](API\Runtime\Engine\GameFramework\APlayerState) * RelatedPlayerState_2, [UObject](API\Runtime\CoreUObject\UObject\UObject) * OptionalObject )